Home / 39,548.79-54,577.36-21,643.80

Finding the Fourth Proportional to 39,548.79, 54,577.36 and 21,643.80

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Solution

The fourth proportional to 39,548.79, 54,577.36 and 21,643.80 is: 29,868.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,548.79 : 54,577.36 = 21,643.80 : x
  2. Step 2: Convert to fraction form
    39,548.79/54,577.36 = 21,643.80/x
  3. Step 3: Cross multiply
    39,548.79x = 54,577.36 × 21,643.80
  4. Step 4: Simplify right side
    39,548.79x = 1,181,261,464.37
  5. Step 5: Solve for x
    x = 1,181,261,464.37/39,548.79
  6. Step 6: Final answer
    x = 29,868.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.